en Basic Neurosurgery Research <div style="text-align: justify;"><strong>Background and Aim: </strong>Neurovascular lesions can cause death or disability. Some of them are operable, but surgical approaches are complicated, and proper access to these lesions is crucial. A few of these surgeries occur during the residency educational program, and residents&#39; experience in operating these lesions may be quite inadequate. Using new technologies like 3D-reconstruction of vascular lesion images may result in better training and improve residents&#39; knowledge and understanding of these operations.<br> <strong>Methods and Materials/Patients: </strong>Four senior neurosurgery residents were enrolled in this study. They were taught to use a 3D image rebuilding program (3D Slicer). They were then asked to rebuild a 3D image of every patient lesion, practice different surgical views, and review anatomical structures around the lesion before surgery.<br> <strong>Results:</strong> All residents mentioned that their knowledge of surgical approaches improved, and they learned more from each operation. Two of them commented that more self-trust during surgeries led to more effective education. Their ability in surgical planning was enhanced too. Attending physicians of these residents believed that this practice improved the residents&#39; skills and educational quality.<br> <strong>Conclusion:</strong> New technologies can promote residency educational programs. It seems that working on 3D images of lesions before surgery can boost residents&#39; educational attributes.</div> Neurosurgery, Aneurysm, Arteriovenous malformations, Education, 3D Slicer 191 196 http://irjns.org/browse.php?a_code=A-10-312-2&slc_lang=en&sid=1 Amir Saied Seddighi a_seddighi@sbmu.ac.ir 10031947532846007370 10031947532846007370 No Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran Hesam Rahimi Baqdashti 10031947532846007371 10031947532846007371 No Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran Afsoun Seddighi afsounseddighi@gmail.com 10031947532846007372 10031947532846007372 Yes Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran Morteza Hosseini dr.mhosseini1987@gmail.com 10031947532846007373 10031947532846007373 No Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran Mostafa Hosseini 10031947532846007374 10031947532846007374 No Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran Alireza Zali 10031947532846007375 10031947532846007375 No Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran Shiva Jamshidi 10031947532846007376 10031947532846007376 No Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran